Magnesium ammonium phosphate (MAP) precipitation has a potential for ammonium removal from industrial wastewaters. Application basis of this recent method of treatment has not been fully determined. In this study application of MAP precipitation to leather tanning wastewaters has been experimentally evaluated. Five alternative places of MAP precipitation in leather tanning wastewater treatment scheme tested were; instead of plain settling, after plain settling, after polyelectrolyte added plain settling, within the chemical precipitation and after biological treatment. Among these alternatives MAP application instead of plain settling and within the chemical precipitation were found to be most favourable and efficient by reducing the nitrogen load to the level of nutrient requirement in the biological stage. pH 9.0-9.5 and stoichiometric magnesium and phosphate doses were determined to be optimum conditions for MAP precipitation.
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Research Article|
August 01 2002
Assessment of magnesium ammonium phosphate precipitation for the treatment of leather tanning industry wastewaters Available to Purchase
I. Kabdaşli;
1Environmental Engineering Department, Civil Engineering Faculty, Istanbul Technical University, Ayazağa Kampüsü, 80626, Maslak, Istanbul, Turkey (E-mail: [email protected]; [email protected])
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O. Tünay;
O. Tünay
1Environmental Engineering Department, Civil Engineering Faculty, Istanbul Technical University, Ayazağa Kampüsü, 80626, Maslak, Istanbul, Turkey (E-mail: [email protected]; [email protected])
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M.Ş. Çetin;
M.Ş. Çetin
1Environmental Engineering Department, Civil Engineering Faculty, Istanbul Technical University, Ayazağa Kampüsü, 80626, Maslak, Istanbul, Turkey (E-mail: [email protected]; [email protected])
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T. Ölmez
T. Ölmez
1Environmental Engineering Department, Civil Engineering Faculty, Istanbul Technical University, Ayazağa Kampüsü, 80626, Maslak, Istanbul, Turkey (E-mail: [email protected]; [email protected])
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Water Sci Technol (2002) 46 (4-5): 231–239.
Citation
I. Kabdaşli, O. Tünay, M.Ş. Çetin, T. Ölmez; Assessment of magnesium ammonium phosphate precipitation for the treatment of leather tanning industry wastewaters. Water Sci Technol 1 August 2002; 46 (4-5): 231–239. doi: https://doi.org/10.2166/wst.2002.0594
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